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Model: 4RB

The 6” suction x 4” discharge centrifugal, submersible or turbine 4RB pump provides up to a maximum of 1600 gallons per minute pumping and up to 250 feet of head. This high-performance, low-maintenance pump is usually mounted on a trailer for ease of use.

Size: 6" x 4"


List Price:

Build Your Pump

Step 1: Mount

Step 2: Power

Step 3: Metallurgy

Step 4: Noise level

Rent to Own Quote for Purchase


  • Pump Size: 6”x4” AISI 150# flanges standard
  • Suction Cover: ASTM A48 class 30 gray iron
  • Wear Ring: ASTM A48 class 30 gray iron
  • Volute Casing: ASTM A48 class 30 gray iron
  • Back Plate: ASTM A48 class 30 gray iron
  • Mechanical Seal: Tungsten vs silicon carbide seal faces Viton elastomers, 300 series stainless steel hardware and spring, seal system designed for dry running
  • Impeller: Enclosed type, seven vane, with .84” spherical solids handling capability stainless steel
  • Bearing Housing: ASTM A48 class 30 gray iron


  • Model: 4045HFC94 iT4
  • 115 intermittent horsepower @ 2400 RPM
  • Four cylinder, four cycle, water cooled diesel engine
  • Governor: Electronic
  • Lubrication: Force feed

The 6 inch (152.4mm) 4RB Clean Prime™ is an extremely robust pump unit, capable of flow rates to 1600 GPM, total
dynamic heads to 250 feet (76.2M), and solids handling capabilities up to .84 inches (21.3mm) in diameter. The 4RB also
features the Power Prime™ Pumps high pressure Tungsten vs. Silicon Carbide mechanical seal that allows for indefinite
dry running, ideal for intermittent flow applications as well as our proprietary Clean Prime™ self-priming system that
mitigates any product blow by in the venture priming system while maintaining suction lift capabilities of up to 28 feet. All of these features come standard on a compact skid or trailer for convenient use.